Pitting-knife for pitting peaches or similar fruits



S. J. DUNKLEY.

FITTING KNIFE FOR PITTING PEACHES 0R SIMILAR FRUITS.

. APPLICATION FILED JAN-H1191?- RENEWED MAY 31,1919. 1,370,099.

Patented Mar. 1, 1921.

v7l//////////l .Y i TH E N,N N E R MM m T .U. A y" WITNESSES:

' UNITED STATES PATENT OFFICE.

SAMUEL J. DUNKLEY, OF KALAMAZOO, -MICHIGAN, ASSIGNOR TO DUNKLET COMPANY,

OF KALAMAZOO, MICHIGAN, A CORPORATION OF MICHIGAN PITTING-KNIFE FOR PITTING PEACHES R SIMILAR FRUITS. I

1 370 099 I Specification of Letters Patent; Patented Man 1, 1921 Application filed January 11, 1917, Serial No. 141,888. RenewediMay 31, 1919. Serial No. 301,118.

To all whom it may concern: similar numerals of reference refer to simi- Be it known that I, SAMUEL J. \DTINKLEY, lar parts throughout the several views. a citizen of the United States, residing at Considering the numbered partsof the Kalamazoo, county ,of Kalamazoo, State of drawing, 1 is the handle of convenient di- Michigan, have invented certain new and mensions,'provided with a flange 1' which 60 useful Improvements in Fitting-Knives for carries the oscillating knife-head 2 on a pin Pitting Peaches or Similar Fruits, of which 3, which is 'carried by a pair of fingers 3 the following is'a specification. The blade 4 has a cutting part in the form This invention relates to improvements of an arc of a circle, the radial center of in pitting knives for pitting :peaches or which is the axis of oscillation of the head 65 similar fruits or for thecoring of fruit or 2. The blade 4 is of sheet metal preferably the cutting of fruits or vegetables for vabeveled on the inner side and, serrated at 4' rious purposes. and retained in place in suitable seats in the The "objects of the invention'are, to prohead 2-by means oflocking screws 5, 5', one

vide a knife structure that may be" power at each end. The revolubleshaft 6, which 7 driven so that the speed of operation is may be revolved bya flexiblev shaft or any greatlyenhanced. suitable means, as a direct connected electric A specific object is, to.provide a structure motor, is supported in a journal block? in with means for oscillation or vibration of the handle 1 and extends through journal I ,the cutting blade to facilitate the cutting bearings 6' in the head of the'handle and is 7 qualities. provided with a head-8 carrying a wrist pin Further objects, and objects relating to 9. A pin 10 is supported in a partial beardetails and economies of construction and .ing 10 in the head 2, the axis of which is operation will definitely appear from the parallel to the axis of oscillation of said detailed description to follow. head. Pin 10 contains the longitudinal slot 80 I accomplish the objects of my invention 11 in which the Wrist pin 9 plays, and on by the devices and means described in the its rotation oscillates the head 2 thereby following specification. The invention is oscillating the blade 4 in a circular path I clearly defined and pointed out in 'the causing the same to out very rapidly and claims. with substantially no resistance. 85

A structure which is a preferred embodi- The blade in the hand of the operator ment of my invention is illustrated in the passes very readily through the pulp of a accompanying drawing forming a part of 'cllngstone peach and makes a clean out. It this specification, in which: will out any fruit or vegetable'with which L -Figure I is a perspective view somewhat it may be brought incontact. This is of the 90 reduced in size of my improved pitting and highest advantage and, facilitates the .recutting knife. i

Fig. II- is a detail longitudinal section, cutting cores from pears, the eyes from pinesomewhat enlarged, the driving shaft and apples, and doing any other work of a simi- -n 1oval of pits from clingstone peaches, also I 40 the,wrist pinbeing shown in full lines. lar character. 95

Fig. III is an enlarged detailtransverse The blade can be rocked by the hand to sectional view on line'33 of Fig. II, showout out the half of a round pit orcan be ing details of construction of the oscillating moved along to cut out along one or to cut or vibratingmeans. out a long core. Peaches or other, fruit are F ig, IV is an enlarged detail transverse cut or sawed in half preliminary to using 100 sectional view on line 4 4 of Figs. I and II, my improved knife. through the knives showing the beveling I am aware that there-are a'great variety of ame, 4 of ways bywhich a blade of this kind may Fig. V is an enlarged detail sectional view be oscillated, in fact, different mechanisms on line 5--5' of Fig. II showing. the disposition of the wrist pin within-the oscillating oscillate the knife without the ihtervention' couplings of the knife head. of .a revolvin shaft. I, however, have In the drawings, the sectional views are shown a spool 0 construction which 1s pretaken looking in the direction of the little ferred by me for the uses indicated and Iv arrows at the ends ,of the section lines, and desire toclaim it specifically andI also demay be used, and it would be possible. to 105.

sire to claim the invention broadly as indicated and pointed out in the appended A claims.

Having thus described my inventio n, what I claim as new and desire to secure by Letters Patent, is: a

1. In a pitting knife, the combination of a suitable handle with a flange thereon, an

oscillating knife head on a pivot transverse longitudinal slot with whicligthe said; wrist pin cooperates, and disposed between said fingers and retained thereby, a serrated blade beveled on its inner side constitut ng flan arc of a circle, the center [of which is in .the said pivot pin, andmeansfor securing the said blade detachably to the said head, coacting for the purpose specified.

2. In a pitting knife, the combination with a suitable handle, of "an. oscillating knife head suitably pivoted thereon, a driving'shaft disposed in bearings in said handle, connections therefrom to oscillate the said head, a blade forming an arc of a circle carried by said head, the center of which circle ,is the center of oscillation of said head, coacting asspecified.

3. In a pitting knife, the combination of a suitable handle, a serrated blade carried by said handle, the cutting 'edgeof which is in the form of an arc of a circle and beveled on its inner ,side, and means connected to oscillate or vibrate the said blade,

.a suitable handle with a flange thereon, an 1 as specified.

4. In a pitting knife, the combination of a suitable handle, a blade carried by said handle, the cutting edge of which is'in the form of an arc of a circle and beveled on its inner side, and means connected to oscillate or vibrate the said blade, as specified.

5. In a pitting knife, the combination of a suitable handle, a serrated blade carried by said handle, the cutting edge of which is in the form of an arcof a circle, and means connected to oscillate or vibrate the said blade, as specified. -6. A pitting knife. comprising a thinblade bent in'substantially anarcof a circle, a

handle pivotally secured thereto at the center of said arc, and means for oscillating said blade'about the said center, the edges of said blade being unobstructed.

7. In a pitting knife, the combination of thereto, a pair of fingers on said handle for a suitable handle, a. curved blade, the cutting edgeiof which is in the curved plane of theblade, carried by said handle,-and means -connected' to oscillate or vibrate the said pin on said head, a pin in said knife headparallel toits said axis of oscillation in a partial journal bearing containing a longitudinal slot with which the said wrist pin 00- operates, and'disposed between said fingers and retained thereby, and ablade beveled on. its inner side constituting an arc of a circle,

the center of which is in the said pivot pin, coacting for the purpose specified.

, 9. In a pitting knife, the combination of a suitable handle with a flange thereon, an

oscillating knife head on a pivot transverse thereto, a pair of fingers on' said handle for supporting said pivot, a driving shaft disposed in bearings in said handle with a head at its outer .end between said fingers, a wrist pin on said head, a pin in said knife head parallel to its saidaxis of oscillation in a partial journal bearing containing a longitudinal slot with which the said wrist pin cooperates, and disposed between said fingers and retainedthereby; and a serrated blade constituting an arc of a circle, the center of which is in'the said pivot pin, coacting for the purpose specified.

10. In a pitting knife, the combination 0 oscillating knife head on a pivot transverse thereto, a driving shaft disposed in be ai ings in said handle with a head at its outer end between said fingers, a wrist pinon saidpivot pin, coacting for the purpose specified.

In-witness whereof I have hereunto set my hand and seal in the pre sence' of'two witnesses.

SAMUEL J DUNKLEY. [L. s.] Witnesses I MARGARET L. GLAseow', MARTHA J. GREGORY. 

